Patents for H04N 7 - Television systems (274,023)
01/1990
01/02/1990US4891698 Arrangement for DPCM-coding of video signals
01/02/1990US4891696 Electronic endoscope apparatus provided with image forming position detecting means
01/02/1990US4891695 Electronic endoscope apparatus provided with a plurality of endoscopes having solid state imaging devices with at least one identical pixel forming element
01/02/1990US4891694 Fiber optic cable television distribution system
01/02/1990US4891633 Digital image exchange system
12/1989
12/28/1989WO1989012943A1 A method and apparatus for manipulating video image signals
12/28/1989DE3914466A1 Digital PCM-video/audio transmission via monomode optical fibres integrated in overhead lines (land cables), trailing cables, power cables (land/sea) for network, power station, traffic or industrial monitoring
12/28/1989DE3821356A1 Bus system for the field of entertainment electronics
12/27/1989EP0348322A1 Method for the restoration of the continuous component of a DMAC type signal, device therefor and use thereof
12/27/1989EP0348321A1 Method of regulating the auxiliary data rate for the reconstruction of undersampled electronic images
12/27/1989EP0348320A1 Animated electronic image segmentation process according to the movement of image blocks, using a contour detection process
12/27/1989EP0348207A2 Image motion vector detecting apparatus
12/27/1989EP0348188A2 Data transmission
12/27/1989EP0348186A2 Bandwidth reduction system for television
12/27/1989EP0348163A2 Compatible television transmission system with separate pre-emphasis path within single channel
12/27/1989EP0347984A1 System for processing television pictures with a motion estimator and reduced data rate
12/27/1989EP0347419A1 Improvements in interactive video systems.
12/26/1989US4890322 Method and apparatus for subscription broadcast
12/26/1989US4890321 Communications format for a subscription television system permitting transmission of individual text messages to subscribers
12/26/1989US4890320 Television broadcast system for selective transmission of viewer-chosen programs at viewer-requested times
12/26/1989US4890319 Method for controlling copying of protected information transmitted over a communications link
12/26/1989US4890314 Teleconference facility with high resolution video display
12/26/1989US4890283 High definition television augmentation channel
12/26/1989US4890162 Adjustable antialias filters
12/26/1989US4890161 Decoding apparatus
12/26/1989US4890160 TV picture motion vector measurement by correlation of pictures
12/21/1989DE3919302A1 Einrichtung zum uebertragen von bildinformation Means for carry over of picture information
12/20/1989EP0347401A2 Method of and system for identification and verification of broadcasted television and radio program segments
12/20/1989EP0347330A1 Method for controlling the filling of the buffer memory of a picture coder, and controlling device for carrying out the method
12/20/1989EP0347325A1 Method and installation for broadcasting compatible high-definition programmes
12/20/1989EP0346856A1 Method and circuits for the processing and transmission of a clock signal, in particular of the video synchronization frequency
12/20/1989EP0346766A1 Blocking artifacts reduction method for video scene coding by means of discrete cosine transformation with a low data rate
12/20/1989EP0346751A2 Device for the DPCM coding of television signals
12/20/1989EP0346750A2 Device for DPCM coding at a high data rate
12/20/1989EP0346700A2 Cable television descrambler
12/20/1989EP0346637A2 Method for processing and transmitting a picture sequence
12/20/1989EP0346636A2 Method for processing and transmitting a picture sequence
12/20/1989EP0346635A2 Method and device for coding pictures
12/20/1989EP0346495A1 Television tuner
12/20/1989EP0346402A1 Interactive video method and apparatus
12/20/1989CN1038196A Frequency generation for extended bandwidth mac color television encoding and decoding
12/20/1989CN1038195A Method and apparatus for improving video scrambling and employing split sync pulses
12/19/1989US4888819 Television on channel selecting apparatus with sequential selection of auxiliary signal source
12/19/1989US4888796 Program material screening device
12/19/1989US4888795 Videotelephone apparatus for transmitting high and low resolution video signals over telephone exchange lines
12/19/1989US4888768 Frame format for video codec
12/19/1989US4888641 Extended definition widescreen television system using plural signal transmission channels
12/19/1989US4888640 Refresh system for digital signals
12/19/1989US4888638 System for substituting television programs transmitted via telephone lines
12/19/1989US4888605 Photographing apparatus with self-monitoring device
12/14/1989WO1989012371A1 Method and apparatus for detecting innovations in a scene
12/14/1989WO1989012370A1 Television broadcast system for selective transmission of viewer-chosen programs at viewer-requested times
12/14/1989DE3818371A1 Device for the selective switching of the connections between a data transmission channel and a plurality of playback devices
12/13/1989EP0346254A1 Central device for authorizing the individual operation of several randomly situated apparatuses
12/13/1989EP0345977A1 Improvements relating to image processing
12/13/1989EP0345952A2 Method and apparatus for encrypting and decrypting time domain signals
12/13/1989EP0345894A1 Device for correcting a video signal
12/13/1989EP0345872A1 Device for reproducing digitized video pictures
12/13/1989EP0345871A1 Device for reproducing digitized video pictures, with inclined plane error restoration
12/13/1989EP0345326A1 Data transmission in active picture period.
12/12/1989US4887306 Adaptive temporal filter for ultrasound imaging system
12/12/1989US4887296 Cryptographic system for direct broadcast satellite system
12/12/1989US4887158 Sound and image transmission system
12/12/1989US4887157 Method and apparatus for improving the resolution of digital signals
12/12/1989US4887156 Method and system for transform coding of video signals
12/12/1989US4887154 Lamp assembly and receptacle
12/12/1989US4887152 Message delivery system operable in an override mode upon reception of a command signal
12/12/1989US4887151 Encoding apparatus for color image data with block-by-block individual quantizing or individual encoding of luminosity, structure, and color information
12/12/1989US4886222 Atmospheric autorotating imaging device
12/06/1989EP0344991A2 AFC apparatus
12/06/1989EP0344856A1 Video signal processing circuit
12/06/1989EP0344846A2 Processing sub-sampled signals
12/06/1989EP0344843A1 Television motion detection arrangement
12/06/1989EP0344754A2 Video tape recorder
12/05/1989US4885803 System and method for controlling a plurality of electronic entertainment devices
12/05/1989US4885795 Hospital digital data transfer system
12/05/1989US4885794 Method and apparatus for protection of channel access in broadband cable communications systems
12/05/1989US4885787 High-speed digital image processing apparatus
12/05/1989US4885776 Television signal encoder with reduced transient switching effects
12/05/1989US4885775 Information display scheme for subscribers of a subscription television system
12/05/1989US4885747 Broadband and baseband LAN
12/05/1989US4885697 Method of identifying spectra
12/05/1989US4885637 Encoder
12/05/1989US4885636 Block adaptive linear predictive coding with adaptive gain and bias
12/05/1989US4885631 High resolution color television signal transmission system and receiver utilizing motion information of a picture
12/05/1989US4885579 Device for the remote control of a videorecorder or a videoreceiver
12/05/1989US4885546 Digital demodulator for AM or FM
12/05/1989CA1263742A1 Method and apparatus for detecting the channel to which an electronic receiver system is tuned
11/1989
11/30/1989WO1989011767A1 System for emission and reception of television with high definition and low data output
11/30/1989DE3917085A1 Circuit arrangement for filtering a video signal
11/30/1989DE3903262A1 Receiving system for a satellite broadcasting system
11/30/1989DE3817752A1 Noise block
11/30/1989DE3816735A1 Method for transmitting 2 or more channels with an alternating current and/or frequency reduction of an alternating coding current
11/29/1989EP0344071A1 Method of broadcasting and receiving messages for admission entitlement supervision
11/29/1989EP0343805A2 Reproduction of secure keys by using distributed key generation data
11/29/1989EP0343790A2 Video telecommunication system and method for compressing and decompressing digital colour video data
11/29/1989EP0343742A2 Decoders for Hamming encoded data
11/29/1989EP0343741A2 Teletext decoders
11/29/1989EP0343740A2 Teletext decoders
11/29/1989EP0343739A2 Teletext decoders